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No Time Like the Present to Apply for an NPI

The NPI application is free and takes about 20 minutes to complete. When applications are submitted via email, NPIs arrive within 1-5 business days. Mailed applications are processed within 20 days, and returned by U.S. mail. Many payers will ask for you to submit NPIs in conjunction with existing identification numbers already in use, so they can get the new numbers into their systems.

To apply online, logon to To send the application by mail (faxes are not accepted), obtain a copy of the form by calling 800-465-3203, and mail it to: NPI Enumerator, P.O. Box 6059, Fargo, ND 58108-6059.

The information provided above is for informational purposes only and should not be interpreted as legal advice. Dentists are encouraged to seek their own legal advice regarding the application of the National Provider Identifier Rule to their practices and circumstances.

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